Bienvenidos! Welcome!A blog about Tau-Chain, TML and Agoras.

Tau-Chain.info is an unofficial blog that gathers information from various Internet sites about IDNI projects: Tau, Tau-Chain, Tau Meta Lenguaje and Agoras. This blog does not belong nor is it part of the official Tau project. The purpose of the blog is to make the project known, in an independent way, to people.​Tau is a revolutionary blockchain platform designed to scale up social consensus and accelerate knowledge creation in a decentralized network. Agoras will be an advanced marketplace for knowledge and computational resources built on this framework.

​Previously I mentioned "controlled English" when discussing the concept of knowledge representation. This post will go into some detail about what controlled English is. In specific I will discuss Kuhn's doctoral dissertation and Attempto Controlled English (ACE).​

​Computational linguistics is an interdisciplinary field concerned with the statistical or rule-based modeling of natural language from a computational perspective.

There are many different controlled natural languagesFirst I would like to discuss the fact that controlled English is not the only controlled nature language and Attempto Controlled English is only one particular controlled English. For example 1 there is RuleSpeak which is a controlled natural language for business rules. Another example2 is Quelo Controlled English which is a controlled English for querying, where you would say statements such as: "I am looking for something, it should be located in a city, the city should produce a new car, the new car should be equipped with a diesel engine". In addition to these examples we also have Google which uses Voice Actions where you can speak into your android phone and say something like: "Create a calendar event: Dinner in San Francisco, Saturday at 7:00PM". All of these are examples of controlled natural languages and reveal just how powerful this could be for users and developers.

What is Attempto Controlled English (ACE)?Attempto Controlled English also known as ACE is a specific controlled natural language. It is likely that at some point in the early stages of development this controlled natural language will be implemented on Tauchain. ACE is like English but relies on following certain rules with a restricted vocabulary.

How does Attempto Controlled English help with Knowledge Representation?In specific because anyone who speaks English can quickly learn Attempto Controlled English it will mean anyone will be able to contribute to the process of knowledge representation. Contributing to a knowledge base becomes very easy when you can simply describe in plain English (with restrictions) exactly the knowledge you want to represent. A semantic Wiki can be built out of this process rather easily.

How does Attempto Controlled English relate to Tauchain?Tauchain requires input from the users to determine a formal specification. Attempto Controlled English is simple enough that anyone can describe a formal specification. For example sentences like:

Every customer inserts a card.Every customer is a human.Every man is a human.Every woman is a human.

As you see above, we are dealing with types. Human is a type. Human is divided at a minimum between male and female subtypes.

And ACEWiki gives an example of what a formal specification could look like in Tauchain. The example being country, where the knowledge in this case is the concept of a country. Then we describe a country by filling in the Wiki collaboratively, where we know first of all that every country is an area, but then collaboratively we fill in the list of current persons who govern a country. Through this method we add to the knowledge base using the knowledge representation language ACE, and in the case of Tauchain we would be adding to potentially a formal specification which eventually is synthesized (program synthesis) by the Tauchain automatic programmer.

To learn more about Attempto Controlled English Wiki watch the video lecture

tau-chain.info is not the official site of Tau-Chain. This website has NO affiliation or relationship with the company or IDNI organization, and its contents are neither approved nor supervised by it. The website is dedicated to collaborate with the community and helping Tau and Agoras to progress in a sustainable way.